Calculate the molality of a aqueous solution of . — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
Calculate the molality of a $20\% \text{ (w/w)}$ aqueous solution of $KI$.
Answer: $1.51 \TEXT{ M}$
💡 Solution & Explanation
In $100 \text{ g}$ solution: $20 \text{ g } KI$ and $80 \text{ g}$ water. <br>$\text{moles } KI = 20 / 166 \approx 0.1205 \text{ mol}$. <br>$m = 0.1205 / 0.08 = 1.506 \text{ m}$.
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